import 'dart:io';

import 'package:flutter_test/flutter_test.dart';
import 'package:nanga_kathai/core/models.dart';
import 'package:nanga_kathai/core/search_normalize.dart';
import 'package:nanga_kathai/data/catalog_repository.dart';

void main() {
  group('foldForSearch', () {
    test('treats common Badaga spelling variants as equal', () {
      expect(foldForSearch('Madhuvae'), foldForSearch('madhuve'));
      expect(foldForSearch('Hethai'), foldForSearch('Hettai'));
      expect(foldForSearch('Hethai'), foldForSearch('Hethe'));
      expect(foldForSearch('Baduga'), isNot(foldForSearch('Kathai')));
    });

    test('keeps Tamil script searchable', () {
      expect(foldForSearch('பாடல்'), 'பாடல்');
    });
  });

  group('matchesSearch', () {
    test('every query word must match some field', () {
      expect(matchesSearch('madhuve song', ['Madhuvae Song', null]), isTrue);
      expect(matchesSearch('madhuve habba', ['Madhuvae Song']), isFalse);
      expect(matchesSearch('   ', ['anything']), isFalse);
    });
  });

  group('demo catalog', () {
    late Catalog catalog;

    setUpAll(() {
      catalog = parseCatalogJson(File('assets/catalog/demo_catalog.json').readAsStringSync());
    });

    test('every track points at known singers and bundled audio', () {
      expect(catalog.tracks, isNotEmpty);
      for (final t in catalog.tracks) {
        expect(catalog.artistsOf(t), hasLength(t.artistIds.length), reason: t.id);
        final path = t.audioUrl.replaceFirst('asset:///', '');
        expect(File(path).existsSync(), isTrue, reason: path);
      }
    });

    test('search finds songs by occasion and singer', () {
      expect(catalog.searchTracks('madhuve').map((t) => t.occasion), everyElement(Occasion.madhuvae));
      expect(catalog.searchTracks('demo singer c'), isNotEmpty);
    });
  });

  test('Artist.initials', () {
    expect(const Artist(id: 'x', name: 'Demo Singer A').initials, 'DA');
    expect(const Artist(id: 'x', name: 'Ponnamma').initials, 'P');
  });
}